Enhance your research when you choose Qkine recombinant proteins

Qkine actively supports stem cell and organoid research by manufacturing highly bioactive and animal-free recombinant proteins that will benefit your research with increased efficiency in both your budget and the reproducibility of your cell cultures.

We are so confident you’ll love our products we’re offering a 50 μg activin A or activin A PLUS™ sample for free!*

Complete the form before the 30th September 2026 to request your free sample.

Terms and conditions

  • Free sample is limited to 1 per customer.
  • Free sample offer applies to Qk001, Qk005, Qk012 and Qk014.
  • Qkine reserves the right to change or remove the promotional discount without notice.
  • Other restrictions may apply. Any questions relating to this promotion should be submitted to [email protected].

Request your sample

Fill in the form below to receive your quotation.

Free sample form
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Please enter the QK code if known
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Qkine shall treat any personal data you provide in accordance with our privacy policy and you hereby give your consent to Qkine to use any such personal data in accordance with our privacy policy.

To ensure absolute reproducibility and optimize scientific outcomes, all our products rigorously adhere to the Nine-point Qkine Quality Commitment

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